Strategies for coastal Cities to Cope with Flood disaster and Urban Heat Island Effect in the Context of Climate Change - A Case study of Shanghai, China With the global warming and the acceleration of urbanization, China's climate has also undergone significant changes. Precipitation increased in many areas, and the frequency of extreme events greatly increased. Therefore, people begin to think more about how to deal with climate change in urban planning and how to have stronger disaster resistance in urban functional structure and layout space. With the rapid development of economic construction in Shanghai, the temperature difference between urban and rural areas continues to expand, the intensity and area of heat island continue to increase, the phenomenon of high temperature in summer continues to strengthen, high temperature disasters occur frequently, and the urban thermal environment problems are becoming more and more prominent.